/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package servlets;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author PabloJesus
 */
public class ValidaDatosLogin extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {            
            String usuario = request.getParameter("txtUsuario");
            String contrasenia = request.getParameter("txtContrasenia");
            boolean esCorrecto = esUsuarioCorrecto(usuario, contrasenia);
            if (esCorrecto) {
                request.getRequestDispatcher("/crudPersona.srv").forward(request, response);
            } else {
                request.getRequestDispatcher("/fracaso.jsp").forward(request, response);
            }
        } finally {
            out.close();
        }
    }

    private boolean esUsuarioCorrecto(String idUsuario, String password) {
        Map<String, String> mapaIdPass = new HashMap<String, String>();
        mapaIdPass.put("persona1", "pass1");        
        Set<Entry<String, String>> entrySet = mapaIdPass.entrySet();
        for (Entry<String, String> entry : entrySet) {
            if (entry.getKey().compareToIgnoreCase(idUsuario) == 0
                    && entry.getValue().compareTo(password) == 0) {
                return true;
            }
        }
        return false;
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
